Ngā hua rapu - water (conservation* OR consultation*)
Ngā kaupapa kua whakahuatia i roto i tō rapu.
Ngā kaupapa kua whakahuatia i roto i tō rapu.
- Water conservation 30
- Soil conservation 20
- Irrigation 6
- Energy conservation 5
- Soil erosion 5
- Soils 5
- Plants 4
- Water 4
- Watershed management 4
- Agricultural engineering 3
- Hydraulic engineering 3
- Management 3
- Natural resources 3
- Organic fertilizers 3
- Water resources development 3
- Analysis 2
- Conservation of natural resources 2
- Drainage 2
- Fertilizers 2
- Hydrological stations 2
- Irrigation engineering 2
- Land use 2
- Landscape gardening 2
- Organic wastes 2
- Organic wastes as fertilizers 2
- Papua New Guinea. Department of Environment & Conservation 2
- Pollution 2
- Recycling 2
- Renewable energy sources 2
- Research 2
-
1
-
2
-
3
-
4
-
5
-
6
Soilerosion by water : some measures for its control on cultivated lands
I whakaputaina 1965Pukapuka -
7
-
8
-
9
The water efficient garden : a practical and innovative guide from planning through to established gardens /
I whakaputaina 1993Pukapuka -
10
-
11
Earth, air, and water : resources and environment in the late 20th century /
I whakaputaina 1991Pukapuka -
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
Irrigation water delivery models : proceedings of the FAO Expert Consultation, Rome, Italy, 4-7 October 1993.
I whakaputaina 1994Pukapuka -
20